Brisbane Polo Dyno Day Results - 25 August 2012

[Sharkie]

My view on the performance we saw here:

• Eddy's K04 Polo, still the king, has all bolt on performance parts that can be fitted in a single day. No engine performance tuning has been done in over 4 years.
• VWIndahouse and Jasn78, has been constantly pushing the envelope with the K03 Polo's and many many changes have been made with resulting good torque numbers, approaching and in Jasn78's case just pipping the K04 levels.
• Sharkie's Polo has had no performance tuning done in over 4 years and are still within 5kw of the others ..... and exactly where you'd expect a Polo to be with those mods.
• This is reflected by Leitch and Spraycanmansam who are exactly where you'd expect them to be.

EDIT: Just looked at the boost numbers and it is now clear where the difference comes in, top 3 all boosting to 1.5 bar where the other K03 Polos stayed at 1.2 bar max. What is the safe level of boost for a K03S?

[noone]

Thanks for putting this together.
Can we get the print outs up as well? Love to see the torque overlayed with this detail.
I can have a go at graphing this, won't be pretty but may make reading a little easier...

[bakersdelight]

Interesting results... can definitely use them as approximate performance guidelines when modding your Polo GTI...

Judging from these results, I should expect ~110-115kw ATW on the same dyno, I got APR stage 1, R1 DV, PD160 and K&N panel filter...

[vwthunder]

So has anyone had their car Dyno'd at the wheels and then at the hubs

Whats the increase at the hubs over at the wheels

[VWindahouse]

Check my signature Troy, it has both in there. Increase in kw but decrease in torque on the hub.

[noone]

Thanks to Guy for this, hoping he may have some feedback / comments from what he saw.
Nice to see that the results were largely on par with expectations and that the mods do add up.

[clicht]

Guy, your views on what you saw?

[Guy_H]

I didn't see anything ground breaking or surprising.

From memory, some people were pushing the K03 turbo outside what we would call safe limits on boost (but I have to look up the boost levels off the dyno to check) and obviously that shows up on the power.

Saying that, K03's are now cheaper than they were 5 years ago, and nobody is really holding these cars WOT on the track all day, so it's a small trade off.

I'll try to pull the ambient temps off the dyno for the Polo boys too:

One factor you need to put in the figures (that had not been calculated) is the ambient temperature.

First run at 9-00am we had an ambient of 17 degrees, at 1-00PM we had an ambient of 24.5 degrees. So the cars run later had a disadvantage of almost 8 degrees celcius.

If you used different dyno correction figures (which we chose not to), the cars run at a hotter ambient may have had an extra 3 - 4 % more power and torque added rather than that of the ones run earlier (they may have been normalised down 3 or 4 %).

This obviously has a great bearing on the results, INCLUDING the ability for the intercooler to do its job.

Taking donations for a temperature controlled dyno room - $750,000 should cover it

[nightphotographer]

Really awesome information guys - such a great job! So much data to take in. I'm surprised the Forge IC came up tops after we've all been dismissing it recently. Also should get a Dyno day in Albury - hasn't made it past 10 degrees for the past week or so - so frickin cold!

[s4mmie]

Just thought I'd post these. I did them up for leitch and myselfs car because we had comparable mods.
You can see the crazy difference in temps with leitch's forge v my stock FMIC.

Boost is in PSI, Temp in deg C and RPM at the bottom.
<EDIT> Added everyone elses.

[h100vw]

Can you do the same for the other Polo's mate?

[s4mmie]

Done

[VWindahouse]

Thanks mate! So just to confirm these graphs represent the first recorded runs?

[s4mmie]

Yeah mate, all first run graphs. From what I gathered on the day and from looking over the run data, everyone made the most power on the first run. From there, everyone made a little more peak boost and intake temps went up but no increase in power.

[VWindahouse]

Nice one bud, cheers! Would it be too much to ask to overlap Jason and my results?